Dd6 soon to be 7 has been independently reading since reception and loves to read. She mainly loves horses or cats but has read many of the Holly Webb type books. Trying to put together a book bundle for her 7th birthday. I loved Black Beauty but is it too much for a 7 year old? Opinions appreciated. Any friendly format recommendations if so? Also any cat books? Fiction or non fiction for either that anyone can recommend, please?